我在创建 React 应用程序时遇到这样的错误

Question

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create-react-app : File C:\Users\ADMIN\AppData\Roaming\npm\create-react-app.ps1 cannot be loaded because running
scripts is disabled on this system. For more information, see about_Execution_Policies at
https:/go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ create-react-app demo

Answer 1

I think you are using Windows, I came across the same problem and it's because of a security feature in your system.

1. Open powershell as an administrator.
2. Run the following command set-executionpolicy remotesigned
3. Try again.

This worked for me.

Sources: https://www.faqforge.com/windows/windows-powershell-running-scripts-is-disabled-on-this-system/

Answer 2

Make sure you remove create-react-app from npm globally and use npx create-react-app {project_name} to generate a react app.

npm uninstall --global create-react-app
npx create-react-app sample

also, make sure that your npm version is after 5.2 while doing these.

Answer 3

Run power shell as admin

1. Windows Start
2. Search for "Windows Powershell"
3. Right click Windows Powershell
4. Click Run as Administrator (Grant in "User Account Control" if shows up)
5. Type set-executionpolicy remotesigned
6. Select/Type yes [Y]

Answer 4

• run cmd as adminstrator then

• cd to the folder you want to create the app in it and type the following

  create-react-app myapp

  this worked for me

Answer 5

试试这个命令： npx create-react-app yourappname

Answer 6

只需以管理员身份运行Power shell ，然后执行命令： set-executionpolicy remotesigned

Answer 7

Just stop your node server in "task manager", and start. After that try to install with npx or npm .

Hope it is useful.

Answer 8

Don't worry, I also got this error. This error comes when you try to write the command create-react-app

when you type the command npm install -g create-react-app, after running this command you should restart the command prompt or command powershell whatever you are using. After restarting command prompt now you can type create-react-app cmd.

Answer 9

如果您是 Windows 操作系统用户，请打开您的 Powershell 并将以下命令粘贴到您的 PowerShell cmd -> set-executionpolicy remotesigned。

Answer 10

This error comes because Microsoft changed some PowerShell execution policies for your security.

We can create react app from mainly two places.

1. Command Prompt - You can easily create new react project without facing any issue.
2. Powershell terminal in Visual code - If you not disables new policies of powershell yet then you will face such problem. You need follow some steps to disable these security features.

• Run power shell as administrator
• Type set-executionpolicy remotesigned
• There will be 5 options.
• You need to type Y (for [Y] Yes) and click Enter button.
• Now you will be able to create react app in your visual code.

Hope it will work for you.